Inequalities and Notation

Look at the Graph. Write the inequality in interval notation.

• [-4, -1)

• (-4, -1)

• (-4, -1]

• [-4, -1]

Write the following in interval notation

x < 8

• [8, ∞)

• (8, -∞)

• (-∞, 8]

• (-∞, 8)

Write the following in interval notation
x ≥ 100

• (0, 100]  

• (∞, 100]

• [100, ∞)

• (∞, 100)

• [0, 3]

• (0, 3)

• [0, 3)

• (0, 3]

Convert into its interval notation:

• (-1, 4)

• [-1, 4]

• (-1, 4]

• [-1, 4)

Convert into its interval notation:

• (5, 11]

• [5, 11]

• (5, 11)

• [5, 11)

Write the following solution in interval notation:

z < 20

• ( -∞ , 20 )

• ( 20,∞)

• ( -∞ , 20)

• ( -∞ , 20]

Write the following solution in interval notation:

x ≥ 6

• ( -∾ , 6]

• ( -∾ , 6 )

• ( 6, ∾ )

• [ 6, ∾ )

Given:

x ≤ -10

Is -25 a solution?

• Yes, it is a solution.

• No, it is not a solution.

Given:

x > 15

Is -25 a solution?

• Yes, it is a solution.

• No, it is not a solution.